supports branch name in notebook urls

[oxalorg]

make it prettier

[oxalorg]

works at https://notebooks.lambdaisland.com/ornament/branch/ox/better-notebook-urls/index.html

Hmmm all direct links work, not the internal <a href> links though Which is fine I guess? Maybe even preferable so we always share perma links to internal pages

[plexus]

Yeah internal links going to permalinks is I think a plus, we can still manually link to specific notebooks if necessary.

[plexus]

Thanks for this!